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Finding the Fourth Proportional to 56,007.60, 77,291.88 and 34,489.20

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Solution

The fourth proportional to 56,007.60, 77,291.88 and 34,489.20 is: 47,595.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,007.60 : 77,291.88 = 34,489.20 : x
  2. Step 2: Convert to fraction form
    56,007.60/77,291.88 = 34,489.20/x
  3. Step 3: Cross multiply
    56,007.60x = 77,291.88 × 34,489.20
  4. Step 4: Simplify right side
    56,007.60x = 2,665,735,107.70
  5. Step 5: Solve for x
    x = 2,665,735,107.70/56,007.60
  6. Step 6: Final answer
    x = 47,595.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.